1 /* 2 * 3 * Generic Bluetooth USB driver 4 * 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24 #include <linux/module.h> 25 #include <linux/usb.h> 26 #include <linux/firmware.h> 27 28 #include <net/bluetooth/bluetooth.h> 29 #include <net/bluetooth/hci_core.h> 30 31 #include "btintel.h" 32 #include "btbcm.h" 33 34 #define VERSION "0.8" 35 36 static bool disable_scofix; 37 static bool force_scofix; 38 39 static bool reset = 1; 40 41 static struct usb_driver btusb_driver; 42 43 #define BTUSB_IGNORE 0x01 44 #define BTUSB_DIGIANSWER 0x02 45 #define BTUSB_CSR 0x04 46 #define BTUSB_SNIFFER 0x08 47 #define BTUSB_BCM92035 0x10 48 #define BTUSB_BROKEN_ISOC 0x20 49 #define BTUSB_WRONG_SCO_MTU 0x40 50 #define BTUSB_ATH3012 0x80 51 #define BTUSB_INTEL 0x100 52 #define BTUSB_INTEL_BOOT 0x200 53 #define BTUSB_BCM_PATCHRAM 0x400 54 #define BTUSB_MARVELL 0x800 55 #define BTUSB_SWAVE 0x1000 56 #define BTUSB_INTEL_NEW 0x2000 57 #define BTUSB_AMP 0x4000 58 #define BTUSB_QCA_ROME 0x8000 59 #define BTUSB_BCM_APPLE 0x10000 60 61 static const struct usb_device_id btusb_table[] = { 62 /* Generic Bluetooth USB device */ 63 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 64 65 /* Generic Bluetooth AMP device */ 66 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 67 68 /* Apple-specific (Broadcom) devices */ 69 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 70 .driver_info = BTUSB_BCM_APPLE }, 71 72 /* MediaTek MT76x0E */ 73 { USB_DEVICE(0x0e8d, 0x763f) }, 74 75 /* Broadcom SoftSailing reporting vendor specific */ 76 { USB_DEVICE(0x0a5c, 0x21e1) }, 77 78 /* Apple MacBookPro 7,1 */ 79 { USB_DEVICE(0x05ac, 0x8213) }, 80 81 /* Apple iMac11,1 */ 82 { USB_DEVICE(0x05ac, 0x8215) }, 83 84 /* Apple MacBookPro6,2 */ 85 { USB_DEVICE(0x05ac, 0x8218) }, 86 87 /* Apple MacBookAir3,1, MacBookAir3,2 */ 88 { USB_DEVICE(0x05ac, 0x821b) }, 89 90 /* Apple MacBookAir4,1 */ 91 { USB_DEVICE(0x05ac, 0x821f) }, 92 93 /* Apple MacBookPro8,2 */ 94 { USB_DEVICE(0x05ac, 0x821a) }, 95 96 /* Apple MacMini5,1 */ 97 { USB_DEVICE(0x05ac, 0x8281) }, 98 99 /* AVM BlueFRITZ! USB v2.0 */ 100 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 101 102 /* Bluetooth Ultraport Module from IBM */ 103 { USB_DEVICE(0x04bf, 0x030a) }, 104 105 /* ALPS Modules with non-standard id */ 106 { USB_DEVICE(0x044e, 0x3001) }, 107 { USB_DEVICE(0x044e, 0x3002) }, 108 109 /* Ericsson with non-standard id */ 110 { USB_DEVICE(0x0bdb, 0x1002) }, 111 112 /* Canyon CN-BTU1 with HID interfaces */ 113 { USB_DEVICE(0x0c10, 0x0000) }, 114 115 /* Broadcom BCM20702A0 */ 116 { USB_DEVICE(0x413c, 0x8197) }, 117 118 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 119 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 120 121 /* Foxconn - Hon Hai */ 122 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 123 .driver_info = BTUSB_BCM_PATCHRAM }, 124 125 /* Lite-On Technology - Broadcom based */ 126 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 127 .driver_info = BTUSB_BCM_PATCHRAM }, 128 129 /* Broadcom devices with vendor specific id */ 130 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 131 .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* ASUSTek Computer - Broadcom based */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Belkin F8065bf - Broadcom based */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* IMC Networks - Broadcom based */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Intel Bluetooth USB Bootloader (RAM module) */ 146 { USB_DEVICE(0x8087, 0x0a5a), 147 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 148 149 { } /* Terminating entry */ 150 }; 151 152 MODULE_DEVICE_TABLE(usb, btusb_table); 153 154 static const struct usb_device_id blacklist_table[] = { 155 /* CSR BlueCore devices */ 156 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 157 158 /* Broadcom BCM2033 without firmware */ 159 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 160 161 /* Atheros 3011 with sflash firmware */ 162 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 163 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 164 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 165 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 166 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 167 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 168 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 169 170 /* Atheros AR9285 Malbec with sflash firmware */ 171 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 172 173 /* Atheros 3012 with sflash firmware */ 174 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 175 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 176 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 177 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 178 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 179 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 180 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 181 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 182 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 183 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 184 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 185 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 186 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 187 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 188 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 189 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 190 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 191 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 192 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 193 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 194 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 195 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 196 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 197 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 198 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 199 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 200 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 201 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 210 211 /* Atheros AR5BBU12 with sflash firmware */ 212 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 213 214 /* Atheros AR5BBU12 with sflash firmware */ 215 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 217 218 /* QCA ROME chipset */ 219 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 220 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 221 222 /* Broadcom BCM2035 */ 223 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 224 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 225 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 226 227 /* Broadcom BCM2045 */ 228 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 229 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 230 231 /* IBM/Lenovo ThinkPad with Broadcom chip */ 232 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 233 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 234 235 /* HP laptop with Broadcom chip */ 236 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 237 238 /* Dell laptop with Broadcom chip */ 239 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 240 241 /* Dell Wireless 370 and 410 devices */ 242 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 243 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 244 245 /* Belkin F8T012 and F8T013 devices */ 246 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 247 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 248 249 /* Asus WL-BTD202 device */ 250 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 251 252 /* Kensington Bluetooth USB adapter */ 253 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 254 255 /* RTX Telecom based adapters with buggy SCO support */ 256 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 257 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 258 259 /* CONWISE Technology based adapters with buggy SCO support */ 260 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, 261 262 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 263 { USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE }, 264 265 /* Digianswer devices */ 266 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 267 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 268 269 /* CSR BlueCore Bluetooth Sniffer */ 270 { USB_DEVICE(0x0a12, 0x0002), 271 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 272 273 /* Frontline ComProbe Bluetooth Sniffer */ 274 { USB_DEVICE(0x16d3, 0x0002), 275 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 276 277 /* Marvell Bluetooth devices */ 278 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 279 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 280 281 /* Intel Bluetooth devices */ 282 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 283 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 284 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 285 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 286 287 /* Other Intel Bluetooth devices */ 288 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 289 .driver_info = BTUSB_IGNORE }, 290 291 { } /* Terminating entry */ 292 }; 293 294 #define BTUSB_MAX_ISOC_FRAMES 10 295 296 #define BTUSB_INTR_RUNNING 0 297 #define BTUSB_BULK_RUNNING 1 298 #define BTUSB_ISOC_RUNNING 2 299 #define BTUSB_SUSPENDING 3 300 #define BTUSB_DID_ISO_RESUME 4 301 #define BTUSB_BOOTLOADER 5 302 #define BTUSB_DOWNLOADING 6 303 #define BTUSB_FIRMWARE_LOADED 7 304 #define BTUSB_FIRMWARE_FAILED 8 305 #define BTUSB_BOOTING 9 306 307 struct btusb_data { 308 struct hci_dev *hdev; 309 struct usb_device *udev; 310 struct usb_interface *intf; 311 struct usb_interface *isoc; 312 313 unsigned long flags; 314 315 struct work_struct work; 316 struct work_struct waker; 317 318 struct usb_anchor deferred; 319 struct usb_anchor tx_anchor; 320 int tx_in_flight; 321 spinlock_t txlock; 322 323 struct usb_anchor intr_anchor; 324 struct usb_anchor bulk_anchor; 325 struct usb_anchor isoc_anchor; 326 spinlock_t rxlock; 327 328 struct sk_buff *evt_skb; 329 struct sk_buff *acl_skb; 330 struct sk_buff *sco_skb; 331 332 struct usb_endpoint_descriptor *intr_ep; 333 struct usb_endpoint_descriptor *bulk_tx_ep; 334 struct usb_endpoint_descriptor *bulk_rx_ep; 335 struct usb_endpoint_descriptor *isoc_tx_ep; 336 struct usb_endpoint_descriptor *isoc_rx_ep; 337 338 __u8 cmdreq_type; 339 __u8 cmdreq; 340 341 unsigned int sco_num; 342 int isoc_altsetting; 343 int suspend_count; 344 345 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 346 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 347 348 int (*setup_on_usb)(struct hci_dev *hdev); 349 }; 350 351 static inline void btusb_free_frags(struct btusb_data *data) 352 { 353 unsigned long flags; 354 355 spin_lock_irqsave(&data->rxlock, flags); 356 357 kfree_skb(data->evt_skb); 358 data->evt_skb = NULL; 359 360 kfree_skb(data->acl_skb); 361 data->acl_skb = NULL; 362 363 kfree_skb(data->sco_skb); 364 data->sco_skb = NULL; 365 366 spin_unlock_irqrestore(&data->rxlock, flags); 367 } 368 369 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 370 { 371 struct sk_buff *skb; 372 int err = 0; 373 374 spin_lock(&data->rxlock); 375 skb = data->evt_skb; 376 377 while (count) { 378 int len; 379 380 if (!skb) { 381 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 382 if (!skb) { 383 err = -ENOMEM; 384 break; 385 } 386 387 bt_cb(skb)->pkt_type = HCI_EVENT_PKT; 388 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE; 389 } 390 391 len = min_t(uint, bt_cb(skb)->expect, count); 392 memcpy(skb_put(skb, len), buffer, len); 393 394 count -= len; 395 buffer += len; 396 bt_cb(skb)->expect -= len; 397 398 if (skb->len == HCI_EVENT_HDR_SIZE) { 399 /* Complete event header */ 400 bt_cb(skb)->expect = hci_event_hdr(skb)->plen; 401 402 if (skb_tailroom(skb) < bt_cb(skb)->expect) { 403 kfree_skb(skb); 404 skb = NULL; 405 406 err = -EILSEQ; 407 break; 408 } 409 } 410 411 if (bt_cb(skb)->expect == 0) { 412 /* Complete frame */ 413 data->recv_event(data->hdev, skb); 414 skb = NULL; 415 } 416 } 417 418 data->evt_skb = skb; 419 spin_unlock(&data->rxlock); 420 421 return err; 422 } 423 424 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 425 { 426 struct sk_buff *skb; 427 int err = 0; 428 429 spin_lock(&data->rxlock); 430 skb = data->acl_skb; 431 432 while (count) { 433 int len; 434 435 if (!skb) { 436 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 437 if (!skb) { 438 err = -ENOMEM; 439 break; 440 } 441 442 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; 443 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE; 444 } 445 446 len = min_t(uint, bt_cb(skb)->expect, count); 447 memcpy(skb_put(skb, len), buffer, len); 448 449 count -= len; 450 buffer += len; 451 bt_cb(skb)->expect -= len; 452 453 if (skb->len == HCI_ACL_HDR_SIZE) { 454 __le16 dlen = hci_acl_hdr(skb)->dlen; 455 456 /* Complete ACL header */ 457 bt_cb(skb)->expect = __le16_to_cpu(dlen); 458 459 if (skb_tailroom(skb) < bt_cb(skb)->expect) { 460 kfree_skb(skb); 461 skb = NULL; 462 463 err = -EILSEQ; 464 break; 465 } 466 } 467 468 if (bt_cb(skb)->expect == 0) { 469 /* Complete frame */ 470 hci_recv_frame(data->hdev, skb); 471 skb = NULL; 472 } 473 } 474 475 data->acl_skb = skb; 476 spin_unlock(&data->rxlock); 477 478 return err; 479 } 480 481 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 482 { 483 struct sk_buff *skb; 484 int err = 0; 485 486 spin_lock(&data->rxlock); 487 skb = data->sco_skb; 488 489 while (count) { 490 int len; 491 492 if (!skb) { 493 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 494 if (!skb) { 495 err = -ENOMEM; 496 break; 497 } 498 499 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; 500 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE; 501 } 502 503 len = min_t(uint, bt_cb(skb)->expect, count); 504 memcpy(skb_put(skb, len), buffer, len); 505 506 count -= len; 507 buffer += len; 508 bt_cb(skb)->expect -= len; 509 510 if (skb->len == HCI_SCO_HDR_SIZE) { 511 /* Complete SCO header */ 512 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen; 513 514 if (skb_tailroom(skb) < bt_cb(skb)->expect) { 515 kfree_skb(skb); 516 skb = NULL; 517 518 err = -EILSEQ; 519 break; 520 } 521 } 522 523 if (bt_cb(skb)->expect == 0) { 524 /* Complete frame */ 525 hci_recv_frame(data->hdev, skb); 526 skb = NULL; 527 } 528 } 529 530 data->sco_skb = skb; 531 spin_unlock(&data->rxlock); 532 533 return err; 534 } 535 536 static void btusb_intr_complete(struct urb *urb) 537 { 538 struct hci_dev *hdev = urb->context; 539 struct btusb_data *data = hci_get_drvdata(hdev); 540 int err; 541 542 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 543 urb->actual_length); 544 545 if (!test_bit(HCI_RUNNING, &hdev->flags)) 546 return; 547 548 if (urb->status == 0) { 549 hdev->stat.byte_rx += urb->actual_length; 550 551 if (btusb_recv_intr(data, urb->transfer_buffer, 552 urb->actual_length) < 0) { 553 BT_ERR("%s corrupted event packet", hdev->name); 554 hdev->stat.err_rx++; 555 } 556 } else if (urb->status == -ENOENT) { 557 /* Avoid suspend failed when usb_kill_urb */ 558 return; 559 } 560 561 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 562 return; 563 564 usb_mark_last_busy(data->udev); 565 usb_anchor_urb(urb, &data->intr_anchor); 566 567 err = usb_submit_urb(urb, GFP_ATOMIC); 568 if (err < 0) { 569 /* -EPERM: urb is being killed; 570 * -ENODEV: device got disconnected */ 571 if (err != -EPERM && err != -ENODEV) 572 BT_ERR("%s urb %p failed to resubmit (%d)", 573 hdev->name, urb, -err); 574 usb_unanchor_urb(urb); 575 } 576 } 577 578 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 579 { 580 struct btusb_data *data = hci_get_drvdata(hdev); 581 struct urb *urb; 582 unsigned char *buf; 583 unsigned int pipe; 584 int err, size; 585 586 BT_DBG("%s", hdev->name); 587 588 if (!data->intr_ep) 589 return -ENODEV; 590 591 urb = usb_alloc_urb(0, mem_flags); 592 if (!urb) 593 return -ENOMEM; 594 595 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 596 597 buf = kmalloc(size, mem_flags); 598 if (!buf) { 599 usb_free_urb(urb); 600 return -ENOMEM; 601 } 602 603 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 604 605 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 606 btusb_intr_complete, hdev, data->intr_ep->bInterval); 607 608 urb->transfer_flags |= URB_FREE_BUFFER; 609 610 usb_anchor_urb(urb, &data->intr_anchor); 611 612 err = usb_submit_urb(urb, mem_flags); 613 if (err < 0) { 614 if (err != -EPERM && err != -ENODEV) 615 BT_ERR("%s urb %p submission failed (%d)", 616 hdev->name, urb, -err); 617 usb_unanchor_urb(urb); 618 } 619 620 usb_free_urb(urb); 621 622 return err; 623 } 624 625 static void btusb_bulk_complete(struct urb *urb) 626 { 627 struct hci_dev *hdev = urb->context; 628 struct btusb_data *data = hci_get_drvdata(hdev); 629 int err; 630 631 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 632 urb->actual_length); 633 634 if (!test_bit(HCI_RUNNING, &hdev->flags)) 635 return; 636 637 if (urb->status == 0) { 638 hdev->stat.byte_rx += urb->actual_length; 639 640 if (data->recv_bulk(data, urb->transfer_buffer, 641 urb->actual_length) < 0) { 642 BT_ERR("%s corrupted ACL packet", hdev->name); 643 hdev->stat.err_rx++; 644 } 645 } else if (urb->status == -ENOENT) { 646 /* Avoid suspend failed when usb_kill_urb */ 647 return; 648 } 649 650 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 651 return; 652 653 usb_anchor_urb(urb, &data->bulk_anchor); 654 usb_mark_last_busy(data->udev); 655 656 err = usb_submit_urb(urb, GFP_ATOMIC); 657 if (err < 0) { 658 /* -EPERM: urb is being killed; 659 * -ENODEV: device got disconnected */ 660 if (err != -EPERM && err != -ENODEV) 661 BT_ERR("%s urb %p failed to resubmit (%d)", 662 hdev->name, urb, -err); 663 usb_unanchor_urb(urb); 664 } 665 } 666 667 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 668 { 669 struct btusb_data *data = hci_get_drvdata(hdev); 670 struct urb *urb; 671 unsigned char *buf; 672 unsigned int pipe; 673 int err, size = HCI_MAX_FRAME_SIZE; 674 675 BT_DBG("%s", hdev->name); 676 677 if (!data->bulk_rx_ep) 678 return -ENODEV; 679 680 urb = usb_alloc_urb(0, mem_flags); 681 if (!urb) 682 return -ENOMEM; 683 684 buf = kmalloc(size, mem_flags); 685 if (!buf) { 686 usb_free_urb(urb); 687 return -ENOMEM; 688 } 689 690 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 691 692 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 693 btusb_bulk_complete, hdev); 694 695 urb->transfer_flags |= URB_FREE_BUFFER; 696 697 usb_mark_last_busy(data->udev); 698 usb_anchor_urb(urb, &data->bulk_anchor); 699 700 err = usb_submit_urb(urb, mem_flags); 701 if (err < 0) { 702 if (err != -EPERM && err != -ENODEV) 703 BT_ERR("%s urb %p submission failed (%d)", 704 hdev->name, urb, -err); 705 usb_unanchor_urb(urb); 706 } 707 708 usb_free_urb(urb); 709 710 return err; 711 } 712 713 static void btusb_isoc_complete(struct urb *urb) 714 { 715 struct hci_dev *hdev = urb->context; 716 struct btusb_data *data = hci_get_drvdata(hdev); 717 int i, err; 718 719 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 720 urb->actual_length); 721 722 if (!test_bit(HCI_RUNNING, &hdev->flags)) 723 return; 724 725 if (urb->status == 0) { 726 for (i = 0; i < urb->number_of_packets; i++) { 727 unsigned int offset = urb->iso_frame_desc[i].offset; 728 unsigned int length = urb->iso_frame_desc[i].actual_length; 729 730 if (urb->iso_frame_desc[i].status) 731 continue; 732 733 hdev->stat.byte_rx += length; 734 735 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 736 length) < 0) { 737 BT_ERR("%s corrupted SCO packet", hdev->name); 738 hdev->stat.err_rx++; 739 } 740 } 741 } else if (urb->status == -ENOENT) { 742 /* Avoid suspend failed when usb_kill_urb */ 743 return; 744 } 745 746 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 747 return; 748 749 usb_anchor_urb(urb, &data->isoc_anchor); 750 751 err = usb_submit_urb(urb, GFP_ATOMIC); 752 if (err < 0) { 753 /* -EPERM: urb is being killed; 754 * -ENODEV: device got disconnected */ 755 if (err != -EPERM && err != -ENODEV) 756 BT_ERR("%s urb %p failed to resubmit (%d)", 757 hdev->name, urb, -err); 758 usb_unanchor_urb(urb); 759 } 760 } 761 762 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 763 { 764 int i, offset = 0; 765 766 BT_DBG("len %d mtu %d", len, mtu); 767 768 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 769 i++, offset += mtu, len -= mtu) { 770 urb->iso_frame_desc[i].offset = offset; 771 urb->iso_frame_desc[i].length = mtu; 772 } 773 774 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 775 urb->iso_frame_desc[i].offset = offset; 776 urb->iso_frame_desc[i].length = len; 777 i++; 778 } 779 780 urb->number_of_packets = i; 781 } 782 783 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 784 { 785 struct btusb_data *data = hci_get_drvdata(hdev); 786 struct urb *urb; 787 unsigned char *buf; 788 unsigned int pipe; 789 int err, size; 790 791 BT_DBG("%s", hdev->name); 792 793 if (!data->isoc_rx_ep) 794 return -ENODEV; 795 796 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 797 if (!urb) 798 return -ENOMEM; 799 800 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 801 BTUSB_MAX_ISOC_FRAMES; 802 803 buf = kmalloc(size, mem_flags); 804 if (!buf) { 805 usb_free_urb(urb); 806 return -ENOMEM; 807 } 808 809 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 810 811 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 812 hdev, data->isoc_rx_ep->bInterval); 813 814 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 815 816 __fill_isoc_descriptor(urb, size, 817 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 818 819 usb_anchor_urb(urb, &data->isoc_anchor); 820 821 err = usb_submit_urb(urb, mem_flags); 822 if (err < 0) { 823 if (err != -EPERM && err != -ENODEV) 824 BT_ERR("%s urb %p submission failed (%d)", 825 hdev->name, urb, -err); 826 usb_unanchor_urb(urb); 827 } 828 829 usb_free_urb(urb); 830 831 return err; 832 } 833 834 static void btusb_tx_complete(struct urb *urb) 835 { 836 struct sk_buff *skb = urb->context; 837 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 838 struct btusb_data *data = hci_get_drvdata(hdev); 839 840 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 841 urb->actual_length); 842 843 if (!test_bit(HCI_RUNNING, &hdev->flags)) 844 goto done; 845 846 if (!urb->status) 847 hdev->stat.byte_tx += urb->transfer_buffer_length; 848 else 849 hdev->stat.err_tx++; 850 851 done: 852 spin_lock(&data->txlock); 853 data->tx_in_flight--; 854 spin_unlock(&data->txlock); 855 856 kfree(urb->setup_packet); 857 858 kfree_skb(skb); 859 } 860 861 static void btusb_isoc_tx_complete(struct urb *urb) 862 { 863 struct sk_buff *skb = urb->context; 864 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 865 866 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 867 urb->actual_length); 868 869 if (!test_bit(HCI_RUNNING, &hdev->flags)) 870 goto done; 871 872 if (!urb->status) 873 hdev->stat.byte_tx += urb->transfer_buffer_length; 874 else 875 hdev->stat.err_tx++; 876 877 done: 878 kfree(urb->setup_packet); 879 880 kfree_skb(skb); 881 } 882 883 static int btusb_open(struct hci_dev *hdev) 884 { 885 struct btusb_data *data = hci_get_drvdata(hdev); 886 int err; 887 888 BT_DBG("%s", hdev->name); 889 890 /* Patching USB firmware files prior to starting any URBs of HCI path 891 * It is more safe to use USB bulk channel for downloading USB patch 892 */ 893 if (data->setup_on_usb) { 894 err = data->setup_on_usb(hdev); 895 if (err <0) 896 return err; 897 } 898 899 err = usb_autopm_get_interface(data->intf); 900 if (err < 0) 901 return err; 902 903 data->intf->needs_remote_wakeup = 1; 904 905 if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) 906 goto done; 907 908 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 909 goto done; 910 911 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 912 if (err < 0) 913 goto failed; 914 915 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 916 if (err < 0) { 917 usb_kill_anchored_urbs(&data->intr_anchor); 918 goto failed; 919 } 920 921 set_bit(BTUSB_BULK_RUNNING, &data->flags); 922 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 923 924 done: 925 usb_autopm_put_interface(data->intf); 926 return 0; 927 928 failed: 929 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 930 clear_bit(HCI_RUNNING, &hdev->flags); 931 usb_autopm_put_interface(data->intf); 932 return err; 933 } 934 935 static void btusb_stop_traffic(struct btusb_data *data) 936 { 937 usb_kill_anchored_urbs(&data->intr_anchor); 938 usb_kill_anchored_urbs(&data->bulk_anchor); 939 usb_kill_anchored_urbs(&data->isoc_anchor); 940 } 941 942 static int btusb_close(struct hci_dev *hdev) 943 { 944 struct btusb_data *data = hci_get_drvdata(hdev); 945 int err; 946 947 BT_DBG("%s", hdev->name); 948 949 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) 950 return 0; 951 952 cancel_work_sync(&data->work); 953 cancel_work_sync(&data->waker); 954 955 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 956 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 957 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 958 959 btusb_stop_traffic(data); 960 btusb_free_frags(data); 961 962 err = usb_autopm_get_interface(data->intf); 963 if (err < 0) 964 goto failed; 965 966 data->intf->needs_remote_wakeup = 0; 967 usb_autopm_put_interface(data->intf); 968 969 failed: 970 usb_scuttle_anchored_urbs(&data->deferred); 971 return 0; 972 } 973 974 static int btusb_flush(struct hci_dev *hdev) 975 { 976 struct btusb_data *data = hci_get_drvdata(hdev); 977 978 BT_DBG("%s", hdev->name); 979 980 usb_kill_anchored_urbs(&data->tx_anchor); 981 btusb_free_frags(data); 982 983 return 0; 984 } 985 986 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 987 { 988 struct btusb_data *data = hci_get_drvdata(hdev); 989 struct usb_ctrlrequest *dr; 990 struct urb *urb; 991 unsigned int pipe; 992 993 urb = usb_alloc_urb(0, GFP_KERNEL); 994 if (!urb) 995 return ERR_PTR(-ENOMEM); 996 997 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 998 if (!dr) { 999 usb_free_urb(urb); 1000 return ERR_PTR(-ENOMEM); 1001 } 1002 1003 dr->bRequestType = data->cmdreq_type; 1004 dr->bRequest = data->cmdreq; 1005 dr->wIndex = 0; 1006 dr->wValue = 0; 1007 dr->wLength = __cpu_to_le16(skb->len); 1008 1009 pipe = usb_sndctrlpipe(data->udev, 0x00); 1010 1011 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1012 skb->data, skb->len, btusb_tx_complete, skb); 1013 1014 skb->dev = (void *)hdev; 1015 1016 return urb; 1017 } 1018 1019 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1020 { 1021 struct btusb_data *data = hci_get_drvdata(hdev); 1022 struct urb *urb; 1023 unsigned int pipe; 1024 1025 if (!data->bulk_tx_ep) 1026 return ERR_PTR(-ENODEV); 1027 1028 urb = usb_alloc_urb(0, GFP_KERNEL); 1029 if (!urb) 1030 return ERR_PTR(-ENOMEM); 1031 1032 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1033 1034 usb_fill_bulk_urb(urb, data->udev, pipe, 1035 skb->data, skb->len, btusb_tx_complete, skb); 1036 1037 skb->dev = (void *)hdev; 1038 1039 return urb; 1040 } 1041 1042 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1043 { 1044 struct btusb_data *data = hci_get_drvdata(hdev); 1045 struct urb *urb; 1046 unsigned int pipe; 1047 1048 if (!data->isoc_tx_ep) 1049 return ERR_PTR(-ENODEV); 1050 1051 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1052 if (!urb) 1053 return ERR_PTR(-ENOMEM); 1054 1055 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1056 1057 usb_fill_int_urb(urb, data->udev, pipe, 1058 skb->data, skb->len, btusb_isoc_tx_complete, 1059 skb, data->isoc_tx_ep->bInterval); 1060 1061 urb->transfer_flags = URB_ISO_ASAP; 1062 1063 __fill_isoc_descriptor(urb, skb->len, 1064 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1065 1066 skb->dev = (void *)hdev; 1067 1068 return urb; 1069 } 1070 1071 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1072 { 1073 struct btusb_data *data = hci_get_drvdata(hdev); 1074 int err; 1075 1076 usb_anchor_urb(urb, &data->tx_anchor); 1077 1078 err = usb_submit_urb(urb, GFP_KERNEL); 1079 if (err < 0) { 1080 if (err != -EPERM && err != -ENODEV) 1081 BT_ERR("%s urb %p submission failed (%d)", 1082 hdev->name, urb, -err); 1083 kfree(urb->setup_packet); 1084 usb_unanchor_urb(urb); 1085 } else { 1086 usb_mark_last_busy(data->udev); 1087 } 1088 1089 usb_free_urb(urb); 1090 return err; 1091 } 1092 1093 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1094 { 1095 struct btusb_data *data = hci_get_drvdata(hdev); 1096 unsigned long flags; 1097 bool suspending; 1098 1099 spin_lock_irqsave(&data->txlock, flags); 1100 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1101 if (!suspending) 1102 data->tx_in_flight++; 1103 spin_unlock_irqrestore(&data->txlock, flags); 1104 1105 if (!suspending) 1106 return submit_tx_urb(hdev, urb); 1107 1108 usb_anchor_urb(urb, &data->deferred); 1109 schedule_work(&data->waker); 1110 1111 usb_free_urb(urb); 1112 return 0; 1113 } 1114 1115 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1116 { 1117 struct urb *urb; 1118 1119 BT_DBG("%s", hdev->name); 1120 1121 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1122 return -EBUSY; 1123 1124 switch (bt_cb(skb)->pkt_type) { 1125 case HCI_COMMAND_PKT: 1126 urb = alloc_ctrl_urb(hdev, skb); 1127 if (IS_ERR(urb)) 1128 return PTR_ERR(urb); 1129 1130 hdev->stat.cmd_tx++; 1131 return submit_or_queue_tx_urb(hdev, urb); 1132 1133 case HCI_ACLDATA_PKT: 1134 urb = alloc_bulk_urb(hdev, skb); 1135 if (IS_ERR(urb)) 1136 return PTR_ERR(urb); 1137 1138 hdev->stat.acl_tx++; 1139 return submit_or_queue_tx_urb(hdev, urb); 1140 1141 case HCI_SCODATA_PKT: 1142 if (hci_conn_num(hdev, SCO_LINK) < 1) 1143 return -ENODEV; 1144 1145 urb = alloc_isoc_urb(hdev, skb); 1146 if (IS_ERR(urb)) 1147 return PTR_ERR(urb); 1148 1149 hdev->stat.sco_tx++; 1150 return submit_tx_urb(hdev, urb); 1151 } 1152 1153 return -EILSEQ; 1154 } 1155 1156 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1157 { 1158 struct btusb_data *data = hci_get_drvdata(hdev); 1159 1160 BT_DBG("%s evt %d", hdev->name, evt); 1161 1162 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1163 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1164 schedule_work(&data->work); 1165 } 1166 } 1167 1168 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1169 { 1170 struct btusb_data *data = hci_get_drvdata(hdev); 1171 struct usb_interface *intf = data->isoc; 1172 struct usb_endpoint_descriptor *ep_desc; 1173 int i, err; 1174 1175 if (!data->isoc) 1176 return -ENODEV; 1177 1178 err = usb_set_interface(data->udev, 1, altsetting); 1179 if (err < 0) { 1180 BT_ERR("%s setting interface failed (%d)", hdev->name, -err); 1181 return err; 1182 } 1183 1184 data->isoc_altsetting = altsetting; 1185 1186 data->isoc_tx_ep = NULL; 1187 data->isoc_rx_ep = NULL; 1188 1189 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1190 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1191 1192 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1193 data->isoc_tx_ep = ep_desc; 1194 continue; 1195 } 1196 1197 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1198 data->isoc_rx_ep = ep_desc; 1199 continue; 1200 } 1201 } 1202 1203 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1204 BT_ERR("%s invalid SCO descriptors", hdev->name); 1205 return -ENODEV; 1206 } 1207 1208 return 0; 1209 } 1210 1211 static void btusb_work(struct work_struct *work) 1212 { 1213 struct btusb_data *data = container_of(work, struct btusb_data, work); 1214 struct hci_dev *hdev = data->hdev; 1215 int new_alts; 1216 int err; 1217 1218 if (data->sco_num > 0) { 1219 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1220 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1221 if (err < 0) { 1222 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1223 usb_kill_anchored_urbs(&data->isoc_anchor); 1224 return; 1225 } 1226 1227 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1228 } 1229 1230 if (hdev->voice_setting & 0x0020) { 1231 static const int alts[3] = { 2, 4, 5 }; 1232 1233 new_alts = alts[data->sco_num - 1]; 1234 } else { 1235 new_alts = data->sco_num; 1236 } 1237 1238 if (data->isoc_altsetting != new_alts) { 1239 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1240 usb_kill_anchored_urbs(&data->isoc_anchor); 1241 1242 if (__set_isoc_interface(hdev, new_alts) < 0) 1243 return; 1244 } 1245 1246 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1247 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1248 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1249 else 1250 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1251 } 1252 } else { 1253 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1254 usb_kill_anchored_urbs(&data->isoc_anchor); 1255 1256 __set_isoc_interface(hdev, 0); 1257 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1258 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1259 } 1260 } 1261 1262 static void btusb_waker(struct work_struct *work) 1263 { 1264 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1265 int err; 1266 1267 err = usb_autopm_get_interface(data->intf); 1268 if (err < 0) 1269 return; 1270 1271 usb_autopm_put_interface(data->intf); 1272 } 1273 1274 static struct sk_buff *btusb_read_local_version(struct hci_dev *hdev) 1275 { 1276 struct sk_buff *skb; 1277 1278 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1279 HCI_INIT_TIMEOUT); 1280 if (IS_ERR(skb)) { 1281 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)", 1282 hdev->name, PTR_ERR(skb)); 1283 return skb; 1284 } 1285 1286 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1287 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch", 1288 hdev->name); 1289 kfree_skb(skb); 1290 return ERR_PTR(-EIO); 1291 } 1292 1293 return skb; 1294 } 1295 1296 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1297 { 1298 struct sk_buff *skb; 1299 u8 val = 0x00; 1300 1301 BT_DBG("%s", hdev->name); 1302 1303 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1304 if (IS_ERR(skb)) 1305 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb)); 1306 else 1307 kfree_skb(skb); 1308 1309 return 0; 1310 } 1311 1312 static int btusb_setup_csr(struct hci_dev *hdev) 1313 { 1314 struct hci_rp_read_local_version *rp; 1315 struct sk_buff *skb; 1316 int ret; 1317 1318 BT_DBG("%s", hdev->name); 1319 1320 skb = btusb_read_local_version(hdev); 1321 if (IS_ERR(skb)) 1322 return -PTR_ERR(skb); 1323 1324 rp = (struct hci_rp_read_local_version *)skb->data; 1325 1326 if (!rp->status) { 1327 if (le16_to_cpu(rp->manufacturer) != 10) { 1328 /* Clear the reset quirk since this is not an actual 1329 * early Bluetooth 1.1 device from CSR. 1330 */ 1331 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1332 1333 /* These fake CSR controllers have all a broken 1334 * stored link key handling and so just disable it. 1335 */ 1336 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, 1337 &hdev->quirks); 1338 } 1339 } 1340 1341 ret = -bt_to_errno(rp->status); 1342 1343 kfree_skb(skb); 1344 1345 return ret; 1346 } 1347 1348 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1349 struct intel_version *ver) 1350 { 1351 const struct firmware *fw; 1352 char fwname[64]; 1353 int ret; 1354 1355 snprintf(fwname, sizeof(fwname), 1356 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1357 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1358 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1359 ver->fw_build_ww, ver->fw_build_yy); 1360 1361 ret = request_firmware(&fw, fwname, &hdev->dev); 1362 if (ret < 0) { 1363 if (ret == -EINVAL) { 1364 BT_ERR("%s Intel firmware file request failed (%d)", 1365 hdev->name, ret); 1366 return NULL; 1367 } 1368 1369 BT_ERR("%s failed to open Intel firmware file: %s(%d)", 1370 hdev->name, fwname, ret); 1371 1372 /* If the correct firmware patch file is not found, use the 1373 * default firmware patch file instead 1374 */ 1375 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1376 ver->hw_platform, ver->hw_variant); 1377 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1378 BT_ERR("%s failed to open default Intel fw file: %s", 1379 hdev->name, fwname); 1380 return NULL; 1381 } 1382 } 1383 1384 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname); 1385 1386 return fw; 1387 } 1388 1389 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1390 const struct firmware *fw, 1391 const u8 **fw_ptr, int *disable_patch) 1392 { 1393 struct sk_buff *skb; 1394 struct hci_command_hdr *cmd; 1395 const u8 *cmd_param; 1396 struct hci_event_hdr *evt = NULL; 1397 const u8 *evt_param = NULL; 1398 int remain = fw->size - (*fw_ptr - fw->data); 1399 1400 /* The first byte indicates the types of the patch command or event. 1401 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1402 * in the current firmware buffer doesn't start with 0x01 or 1403 * the size of remain buffer is smaller than HCI command header, 1404 * the firmware file is corrupted and it should stop the patching 1405 * process. 1406 */ 1407 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1408 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); 1409 return -EINVAL; 1410 } 1411 (*fw_ptr)++; 1412 remain--; 1413 1414 cmd = (struct hci_command_hdr *)(*fw_ptr); 1415 *fw_ptr += sizeof(*cmd); 1416 remain -= sizeof(*cmd); 1417 1418 /* Ensure that the remain firmware data is long enough than the length 1419 * of command parameter. If not, the firmware file is corrupted. 1420 */ 1421 if (remain < cmd->plen) { 1422 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); 1423 return -EFAULT; 1424 } 1425 1426 /* If there is a command that loads a patch in the firmware 1427 * file, then enable the patch upon success, otherwise just 1428 * disable the manufacturer mode, for example patch activation 1429 * is not required when the default firmware patch file is used 1430 * because there are no patch data to load. 1431 */ 1432 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1433 *disable_patch = 0; 1434 1435 cmd_param = *fw_ptr; 1436 *fw_ptr += cmd->plen; 1437 remain -= cmd->plen; 1438 1439 /* This reads the expected events when the above command is sent to the 1440 * device. Some vendor commands expects more than one events, for 1441 * example command status event followed by vendor specific event. 1442 * For this case, it only keeps the last expected event. so the command 1443 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1444 * last expected event. 1445 */ 1446 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1447 (*fw_ptr)++; 1448 remain--; 1449 1450 evt = (struct hci_event_hdr *)(*fw_ptr); 1451 *fw_ptr += sizeof(*evt); 1452 remain -= sizeof(*evt); 1453 1454 if (remain < evt->plen) { 1455 BT_ERR("%s Intel fw corrupted: invalid evt len", 1456 hdev->name); 1457 return -EFAULT; 1458 } 1459 1460 evt_param = *fw_ptr; 1461 *fw_ptr += evt->plen; 1462 remain -= evt->plen; 1463 } 1464 1465 /* Every HCI commands in the firmware file has its correspond event. 1466 * If event is not found or remain is smaller than zero, the firmware 1467 * file is corrupted. 1468 */ 1469 if (!evt || !evt_param || remain < 0) { 1470 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); 1471 return -EFAULT; 1472 } 1473 1474 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1475 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1476 if (IS_ERR(skb)) { 1477 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", 1478 hdev->name, cmd->opcode, PTR_ERR(skb)); 1479 return PTR_ERR(skb); 1480 } 1481 1482 /* It ensures that the returned event matches the event data read from 1483 * the firmware file. At fist, it checks the length and then 1484 * the contents of the event. 1485 */ 1486 if (skb->len != evt->plen) { 1487 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, 1488 le16_to_cpu(cmd->opcode)); 1489 kfree_skb(skb); 1490 return -EFAULT; 1491 } 1492 1493 if (memcmp(skb->data, evt_param, evt->plen)) { 1494 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", 1495 hdev->name, le16_to_cpu(cmd->opcode)); 1496 kfree_skb(skb); 1497 return -EFAULT; 1498 } 1499 kfree_skb(skb); 1500 1501 return 0; 1502 } 1503 1504 static int btusb_setup_intel(struct hci_dev *hdev) 1505 { 1506 struct sk_buff *skb; 1507 const struct firmware *fw; 1508 const u8 *fw_ptr; 1509 int disable_patch; 1510 struct intel_version *ver; 1511 1512 const u8 mfg_enable[] = { 0x01, 0x00 }; 1513 const u8 mfg_disable[] = { 0x00, 0x00 }; 1514 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 }; 1515 const u8 mfg_reset_activate[] = { 0x00, 0x02 }; 1516 1517 BT_DBG("%s", hdev->name); 1518 1519 /* The controller has a bug with the first HCI command sent to it 1520 * returning number of completed commands as zero. This would stall the 1521 * command processing in the Bluetooth core. 1522 * 1523 * As a workaround, send HCI Reset command first which will reset the 1524 * number of completed commands and allow normal command processing 1525 * from now on. 1526 */ 1527 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1528 if (IS_ERR(skb)) { 1529 BT_ERR("%s sending initial HCI reset command failed (%ld)", 1530 hdev->name, PTR_ERR(skb)); 1531 return PTR_ERR(skb); 1532 } 1533 kfree_skb(skb); 1534 1535 /* Read Intel specific controller version first to allow selection of 1536 * which firmware file to load. 1537 * 1538 * The returned information are hardware variant and revision plus 1539 * firmware variant, revision and build number. 1540 */ 1541 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT); 1542 if (IS_ERR(skb)) { 1543 BT_ERR("%s reading Intel fw version command failed (%ld)", 1544 hdev->name, PTR_ERR(skb)); 1545 return PTR_ERR(skb); 1546 } 1547 1548 if (skb->len != sizeof(*ver)) { 1549 BT_ERR("%s Intel version event length mismatch", hdev->name); 1550 kfree_skb(skb); 1551 return -EIO; 1552 } 1553 1554 ver = (struct intel_version *)skb->data; 1555 if (ver->status) { 1556 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name, 1557 ver->status); 1558 kfree_skb(skb); 1559 return -bt_to_errno(ver->status); 1560 } 1561 1562 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1563 hdev->name, ver->hw_platform, ver->hw_variant, 1564 ver->hw_revision, ver->fw_variant, ver->fw_revision, 1565 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy, 1566 ver->fw_patch_num); 1567 1568 /* fw_patch_num indicates the version of patch the device currently 1569 * have. If there is no patch data in the device, it is always 0x00. 1570 * So, if it is other than 0x00, no need to patch the deivce again. 1571 */ 1572 if (ver->fw_patch_num) { 1573 BT_INFO("%s: Intel device is already patched. patch num: %02x", 1574 hdev->name, ver->fw_patch_num); 1575 kfree_skb(skb); 1576 btintel_check_bdaddr(hdev); 1577 return 0; 1578 } 1579 1580 /* Opens the firmware patch file based on the firmware version read 1581 * from the controller. If it fails to open the matching firmware 1582 * patch file, it tries to open the default firmware patch file. 1583 * If no patch file is found, allow the device to operate without 1584 * a patch. 1585 */ 1586 fw = btusb_setup_intel_get_fw(hdev, ver); 1587 if (!fw) { 1588 kfree_skb(skb); 1589 btintel_check_bdaddr(hdev); 1590 return 0; 1591 } 1592 fw_ptr = fw->data; 1593 1594 /* This Intel specific command enables the manufacturer mode of the 1595 * controller. 1596 * 1597 * Only while this mode is enabled, the driver can download the 1598 * firmware patch data and configuration parameters. 1599 */ 1600 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT); 1601 if (IS_ERR(skb)) { 1602 BT_ERR("%s entering Intel manufacturer mode failed (%ld)", 1603 hdev->name, PTR_ERR(skb)); 1604 release_firmware(fw); 1605 return PTR_ERR(skb); 1606 } 1607 1608 if (skb->data[0]) { 1609 u8 evt_status = skb->data[0]; 1610 1611 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)", 1612 hdev->name, evt_status); 1613 kfree_skb(skb); 1614 release_firmware(fw); 1615 return -bt_to_errno(evt_status); 1616 } 1617 kfree_skb(skb); 1618 1619 disable_patch = 1; 1620 1621 /* The firmware data file consists of list of Intel specific HCI 1622 * commands and its expected events. The first byte indicates the 1623 * type of the message, either HCI command or HCI event. 1624 * 1625 * It reads the command and its expected event from the firmware file, 1626 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1627 * the returned event is compared with the event read from the firmware 1628 * file and it will continue until all the messages are downloaded to 1629 * the controller. 1630 * 1631 * Once the firmware patching is completed successfully, 1632 * the manufacturer mode is disabled with reset and activating the 1633 * downloaded patch. 1634 * 1635 * If the firmware patching fails, the manufacturer mode is 1636 * disabled with reset and deactivating the patch. 1637 * 1638 * If the default patch file is used, no reset is done when disabling 1639 * the manufacturer. 1640 */ 1641 while (fw->size > fw_ptr - fw->data) { 1642 int ret; 1643 1644 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1645 &disable_patch); 1646 if (ret < 0) 1647 goto exit_mfg_deactivate; 1648 } 1649 1650 release_firmware(fw); 1651 1652 if (disable_patch) 1653 goto exit_mfg_disable; 1654 1655 /* Patching completed successfully and disable the manufacturer mode 1656 * with reset and activate the downloaded firmware patches. 1657 */ 1658 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate), 1659 mfg_reset_activate, HCI_INIT_TIMEOUT); 1660 if (IS_ERR(skb)) { 1661 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", 1662 hdev->name, PTR_ERR(skb)); 1663 return PTR_ERR(skb); 1664 } 1665 kfree_skb(skb); 1666 1667 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated", 1668 hdev->name); 1669 1670 btintel_check_bdaddr(hdev); 1671 return 0; 1672 1673 exit_mfg_disable: 1674 /* Disable the manufacturer mode without reset */ 1675 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable, 1676 HCI_INIT_TIMEOUT); 1677 if (IS_ERR(skb)) { 1678 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", 1679 hdev->name, PTR_ERR(skb)); 1680 return PTR_ERR(skb); 1681 } 1682 kfree_skb(skb); 1683 1684 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name); 1685 1686 btintel_check_bdaddr(hdev); 1687 return 0; 1688 1689 exit_mfg_deactivate: 1690 release_firmware(fw); 1691 1692 /* Patching failed. Disable the manufacturer mode with reset and 1693 * deactivate the downloaded firmware patches. 1694 */ 1695 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate), 1696 mfg_reset_deactivate, HCI_INIT_TIMEOUT); 1697 if (IS_ERR(skb)) { 1698 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", 1699 hdev->name, PTR_ERR(skb)); 1700 return PTR_ERR(skb); 1701 } 1702 kfree_skb(skb); 1703 1704 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated", 1705 hdev->name); 1706 1707 btintel_check_bdaddr(hdev); 1708 return 0; 1709 } 1710 1711 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1712 { 1713 struct sk_buff *skb; 1714 struct hci_event_hdr *hdr; 1715 struct hci_ev_cmd_complete *evt; 1716 1717 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); 1718 if (!skb) 1719 return -ENOMEM; 1720 1721 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr)); 1722 hdr->evt = HCI_EV_CMD_COMPLETE; 1723 hdr->plen = sizeof(*evt) + 1; 1724 1725 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt)); 1726 evt->ncmd = 0x01; 1727 evt->opcode = cpu_to_le16(opcode); 1728 1729 *skb_put(skb, 1) = 0x00; 1730 1731 bt_cb(skb)->pkt_type = HCI_EVENT_PKT; 1732 1733 return hci_recv_frame(hdev, skb); 1734 } 1735 1736 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1737 int count) 1738 { 1739 /* When the device is in bootloader mode, then it can send 1740 * events via the bulk endpoint. These events are treated the 1741 * same way as the ones received from the interrupt endpoint. 1742 */ 1743 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1744 return btusb_recv_intr(data, buffer, count); 1745 1746 return btusb_recv_bulk(data, buffer, count); 1747 } 1748 1749 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1750 unsigned int len) 1751 { 1752 const struct intel_bootup *evt = ptr; 1753 1754 if (len != sizeof(*evt)) 1755 return; 1756 1757 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1758 smp_mb__after_atomic(); 1759 wake_up_bit(&data->flags, BTUSB_BOOTING); 1760 } 1761 } 1762 1763 static void btusb_intel_secure_send_result(struct btusb_data *data, 1764 const void *ptr, unsigned int len) 1765 { 1766 const struct intel_secure_send_result *evt = ptr; 1767 1768 if (len != sizeof(*evt)) 1769 return; 1770 1771 if (evt->result) 1772 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1773 1774 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1775 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1776 smp_mb__after_atomic(); 1777 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1778 } 1779 } 1780 1781 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1782 { 1783 struct btusb_data *data = hci_get_drvdata(hdev); 1784 1785 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1786 struct hci_event_hdr *hdr = (void *)skb->data; 1787 1788 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1789 hdr->plen > 0) { 1790 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1791 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1792 1793 switch (skb->data[2]) { 1794 case 0x02: 1795 /* When switching to the operational firmware 1796 * the device sends a vendor specific event 1797 * indicating that the bootup completed. 1798 */ 1799 btusb_intel_bootup(data, ptr, len); 1800 break; 1801 case 0x06: 1802 /* When the firmware loading completes the 1803 * device sends out a vendor specific event 1804 * indicating the result of the firmware 1805 * loading. 1806 */ 1807 btusb_intel_secure_send_result(data, ptr, len); 1808 break; 1809 } 1810 } 1811 } 1812 1813 return hci_recv_frame(hdev, skb); 1814 } 1815 1816 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1817 { 1818 struct btusb_data *data = hci_get_drvdata(hdev); 1819 struct urb *urb; 1820 1821 BT_DBG("%s", hdev->name); 1822 1823 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1824 return -EBUSY; 1825 1826 switch (bt_cb(skb)->pkt_type) { 1827 case HCI_COMMAND_PKT: 1828 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1829 struct hci_command_hdr *cmd = (void *)skb->data; 1830 __u16 opcode = le16_to_cpu(cmd->opcode); 1831 1832 /* When in bootloader mode and the command 0xfc09 1833 * is received, it needs to be send down the 1834 * bulk endpoint. So allocate a bulk URB instead. 1835 */ 1836 if (opcode == 0xfc09) 1837 urb = alloc_bulk_urb(hdev, skb); 1838 else 1839 urb = alloc_ctrl_urb(hdev, skb); 1840 1841 /* When the 0xfc01 command is issued to boot into 1842 * the operational firmware, it will actually not 1843 * send a command complete event. To keep the flow 1844 * control working inject that event here. 1845 */ 1846 if (opcode == 0xfc01) 1847 inject_cmd_complete(hdev, opcode); 1848 } else { 1849 urb = alloc_ctrl_urb(hdev, skb); 1850 } 1851 if (IS_ERR(urb)) 1852 return PTR_ERR(urb); 1853 1854 hdev->stat.cmd_tx++; 1855 return submit_or_queue_tx_urb(hdev, urb); 1856 1857 case HCI_ACLDATA_PKT: 1858 urb = alloc_bulk_urb(hdev, skb); 1859 if (IS_ERR(urb)) 1860 return PTR_ERR(urb); 1861 1862 hdev->stat.acl_tx++; 1863 return submit_or_queue_tx_urb(hdev, urb); 1864 1865 case HCI_SCODATA_PKT: 1866 if (hci_conn_num(hdev, SCO_LINK) < 1) 1867 return -ENODEV; 1868 1869 urb = alloc_isoc_urb(hdev, skb); 1870 if (IS_ERR(urb)) 1871 return PTR_ERR(urb); 1872 1873 hdev->stat.sco_tx++; 1874 return submit_tx_urb(hdev, urb); 1875 } 1876 1877 return -EILSEQ; 1878 } 1879 1880 static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type, 1881 u32 plen, const void *param) 1882 { 1883 while (plen > 0) { 1884 struct sk_buff *skb; 1885 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen; 1886 1887 cmd_param[0] = fragment_type; 1888 memcpy(cmd_param + 1, param, fragment_len); 1889 1890 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1, 1891 cmd_param, HCI_INIT_TIMEOUT); 1892 if (IS_ERR(skb)) 1893 return PTR_ERR(skb); 1894 1895 kfree_skb(skb); 1896 1897 plen -= fragment_len; 1898 param += fragment_len; 1899 } 1900 1901 return 0; 1902 } 1903 1904 static void btusb_intel_version_info(struct hci_dev *hdev, 1905 struct intel_version *ver) 1906 { 1907 const char *variant; 1908 1909 switch (ver->fw_variant) { 1910 case 0x06: 1911 variant = "Bootloader"; 1912 break; 1913 case 0x23: 1914 variant = "Firmware"; 1915 break; 1916 default: 1917 return; 1918 } 1919 1920 BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name, 1921 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f, 1922 ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy); 1923 } 1924 1925 static int btusb_setup_intel_new(struct hci_dev *hdev) 1926 { 1927 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01, 1928 0x00, 0x08, 0x04, 0x00 }; 1929 struct btusb_data *data = hci_get_drvdata(hdev); 1930 struct sk_buff *skb; 1931 struct intel_version *ver; 1932 struct intel_boot_params *params; 1933 const struct firmware *fw; 1934 const u8 *fw_ptr; 1935 char fwname[64]; 1936 ktime_t calltime, delta, rettime; 1937 unsigned long long duration; 1938 int err; 1939 1940 BT_DBG("%s", hdev->name); 1941 1942 calltime = ktime_get(); 1943 1944 /* Read the Intel version information to determine if the device 1945 * is in bootloader mode or if it already has operational firmware 1946 * loaded. 1947 */ 1948 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT); 1949 if (IS_ERR(skb)) { 1950 BT_ERR("%s: Reading Intel version information failed (%ld)", 1951 hdev->name, PTR_ERR(skb)); 1952 return PTR_ERR(skb); 1953 } 1954 1955 if (skb->len != sizeof(*ver)) { 1956 BT_ERR("%s: Intel version event size mismatch", hdev->name); 1957 kfree_skb(skb); 1958 return -EILSEQ; 1959 } 1960 1961 ver = (struct intel_version *)skb->data; 1962 if (ver->status) { 1963 BT_ERR("%s: Intel version command failure (%02x)", 1964 hdev->name, ver->status); 1965 err = -bt_to_errno(ver->status); 1966 kfree_skb(skb); 1967 return err; 1968 } 1969 1970 /* The hardware platform number has a fixed value of 0x37 and 1971 * for now only accept this single value. 1972 */ 1973 if (ver->hw_platform != 0x37) { 1974 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 1975 hdev->name, ver->hw_platform); 1976 kfree_skb(skb); 1977 return -EINVAL; 1978 } 1979 1980 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is 1981 * supported by this firmware loading method. This check has been 1982 * put in place to ensure correct forward compatibility options 1983 * when newer hardware variants come along. 1984 */ 1985 if (ver->hw_variant != 0x0b) { 1986 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 1987 hdev->name, ver->hw_variant); 1988 kfree_skb(skb); 1989 return -EINVAL; 1990 } 1991 1992 btusb_intel_version_info(hdev, ver); 1993 1994 /* The firmware variant determines if the device is in bootloader 1995 * mode or is running operational firmware. The value 0x06 identifies 1996 * the bootloader and the value 0x23 identifies the operational 1997 * firmware. 1998 * 1999 * When the operational firmware is already present, then only 2000 * the check for valid Bluetooth device address is needed. This 2001 * determines if the device will be added as configured or 2002 * unconfigured controller. 2003 * 2004 * It is not possible to use the Secure Boot Parameters in this 2005 * case since that command is only available in bootloader mode. 2006 */ 2007 if (ver->fw_variant == 0x23) { 2008 kfree_skb(skb); 2009 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2010 btintel_check_bdaddr(hdev); 2011 return 0; 2012 } 2013 2014 /* If the device is not in bootloader mode, then the only possible 2015 * choice is to return an error and abort the device initialization. 2016 */ 2017 if (ver->fw_variant != 0x06) { 2018 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2019 hdev->name, ver->fw_variant); 2020 kfree_skb(skb); 2021 return -ENODEV; 2022 } 2023 2024 kfree_skb(skb); 2025 2026 /* Read the secure boot parameters to identify the operating 2027 * details of the bootloader. 2028 */ 2029 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); 2030 if (IS_ERR(skb)) { 2031 BT_ERR("%s: Reading Intel boot parameters failed (%ld)", 2032 hdev->name, PTR_ERR(skb)); 2033 return PTR_ERR(skb); 2034 } 2035 2036 if (skb->len != sizeof(*params)) { 2037 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name); 2038 kfree_skb(skb); 2039 return -EILSEQ; 2040 } 2041 2042 params = (struct intel_boot_params *)skb->data; 2043 if (params->status) { 2044 BT_ERR("%s: Intel boot parameters command failure (%02x)", 2045 hdev->name, params->status); 2046 err = -bt_to_errno(params->status); 2047 kfree_skb(skb); 2048 return err; 2049 } 2050 2051 BT_INFO("%s: Device revision is %u", hdev->name, 2052 le16_to_cpu(params->dev_revid)); 2053 2054 BT_INFO("%s: Secure boot is %s", hdev->name, 2055 params->secure_boot ? "enabled" : "disabled"); 2056 2057 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name, 2058 params->min_fw_build_nn, params->min_fw_build_cw, 2059 2000 + params->min_fw_build_yy); 2060 2061 /* It is required that every single firmware fragment is acknowledged 2062 * with a command complete event. If the boot parameters indicate 2063 * that this bootloader does not send them, then abort the setup. 2064 */ 2065 if (params->limited_cce != 0x00) { 2066 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2067 hdev->name, params->limited_cce); 2068 kfree_skb(skb); 2069 return -EINVAL; 2070 } 2071 2072 /* If the OTP has no valid Bluetooth device address, then there will 2073 * also be no valid address for the operational firmware. 2074 */ 2075 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { 2076 BT_INFO("%s: No device address configured", hdev->name); 2077 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2078 } 2079 2080 /* With this Intel bootloader only the hardware variant and device 2081 * revision information are used to select the right firmware. 2082 * 2083 * Currently this bootloader support is limited to hardware variant 2084 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b). 2085 */ 2086 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi", 2087 le16_to_cpu(params->dev_revid)); 2088 2089 err = request_firmware(&fw, fwname, &hdev->dev); 2090 if (err < 0) { 2091 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2092 hdev->name, err); 2093 kfree_skb(skb); 2094 return err; 2095 } 2096 2097 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname); 2098 2099 kfree_skb(skb); 2100 2101 if (fw->size < 644) { 2102 BT_ERR("%s: Invalid size of firmware file (%zu)", 2103 hdev->name, fw->size); 2104 err = -EBADF; 2105 goto done; 2106 } 2107 2108 set_bit(BTUSB_DOWNLOADING, &data->flags); 2109 2110 /* Start the firmware download transaction with the Init fragment 2111 * represented by the 128 bytes of CSS header. 2112 */ 2113 err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data); 2114 if (err < 0) { 2115 BT_ERR("%s: Failed to send firmware header (%d)", 2116 hdev->name, err); 2117 goto done; 2118 } 2119 2120 /* Send the 256 bytes of public key information from the firmware 2121 * as the PKey fragment. 2122 */ 2123 err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128); 2124 if (err < 0) { 2125 BT_ERR("%s: Failed to send firmware public key (%d)", 2126 hdev->name, err); 2127 goto done; 2128 } 2129 2130 /* Send the 256 bytes of signature information from the firmware 2131 * as the Sign fragment. 2132 */ 2133 err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388); 2134 if (err < 0) { 2135 BT_ERR("%s: Failed to send firmware signature (%d)", 2136 hdev->name, err); 2137 goto done; 2138 } 2139 2140 fw_ptr = fw->data + 644; 2141 2142 while (fw_ptr - fw->data < fw->size) { 2143 struct hci_command_hdr *cmd = (void *)fw_ptr; 2144 u8 cmd_len; 2145 2146 cmd_len = sizeof(*cmd) + cmd->plen; 2147 2148 /* Send each command from the firmware data buffer as 2149 * a single Data fragment. 2150 */ 2151 err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr); 2152 if (err < 0) { 2153 BT_ERR("%s: Failed to send firmware data (%d)", 2154 hdev->name, err); 2155 goto done; 2156 } 2157 2158 fw_ptr += cmd_len; 2159 } 2160 2161 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2162 2163 BT_INFO("%s: Waiting for firmware download to complete", hdev->name); 2164 2165 /* Before switching the device into operational mode and with that 2166 * booting the loaded firmware, wait for the bootloader notification 2167 * that all fragments have been successfully received. 2168 * 2169 * When the event processing receives the notification, then the 2170 * BTUSB_DOWNLOADING flag will be cleared. 2171 * 2172 * The firmware loading should not take longer than 5 seconds 2173 * and thus just timeout if that happens and fail the setup 2174 * of this device. 2175 */ 2176 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2177 TASK_INTERRUPTIBLE, 2178 msecs_to_jiffies(5000)); 2179 if (err == 1) { 2180 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2181 err = -EINTR; 2182 goto done; 2183 } 2184 2185 if (err) { 2186 BT_ERR("%s: Firmware loading timeout", hdev->name); 2187 err = -ETIMEDOUT; 2188 goto done; 2189 } 2190 2191 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2192 BT_ERR("%s: Firmware loading failed", hdev->name); 2193 err = -ENOEXEC; 2194 goto done; 2195 } 2196 2197 rettime = ktime_get(); 2198 delta = ktime_sub(rettime, calltime); 2199 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2200 2201 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration); 2202 2203 done: 2204 release_firmware(fw); 2205 2206 if (err < 0) 2207 return err; 2208 2209 calltime = ktime_get(); 2210 2211 set_bit(BTUSB_BOOTING, &data->flags); 2212 2213 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param, 2214 HCI_INIT_TIMEOUT); 2215 if (IS_ERR(skb)) 2216 return PTR_ERR(skb); 2217 2218 kfree_skb(skb); 2219 2220 /* The bootloader will not indicate when the device is ready. This 2221 * is done by the operational firmware sending bootup notification. 2222 * 2223 * Booting into operational firmware should not take longer than 2224 * 1 second. However if that happens, then just fail the setup 2225 * since something went wrong. 2226 */ 2227 BT_INFO("%s: Waiting for device to boot", hdev->name); 2228 2229 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2230 TASK_INTERRUPTIBLE, 2231 msecs_to_jiffies(1000)); 2232 2233 if (err == 1) { 2234 BT_ERR("%s: Device boot interrupted", hdev->name); 2235 return -EINTR; 2236 } 2237 2238 if (err) { 2239 BT_ERR("%s: Device boot timeout", hdev->name); 2240 return -ETIMEDOUT; 2241 } 2242 2243 rettime = ktime_get(); 2244 delta = ktime_sub(rettime, calltime); 2245 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2246 2247 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration); 2248 2249 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2250 2251 return 0; 2252 } 2253 2254 static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code) 2255 { 2256 struct sk_buff *skb; 2257 u8 type = 0x00; 2258 2259 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code); 2260 2261 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 2262 if (IS_ERR(skb)) { 2263 BT_ERR("%s: Reset after hardware error failed (%ld)", 2264 hdev->name, PTR_ERR(skb)); 2265 return; 2266 } 2267 kfree_skb(skb); 2268 2269 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT); 2270 if (IS_ERR(skb)) { 2271 BT_ERR("%s: Retrieving Intel exception info failed (%ld)", 2272 hdev->name, PTR_ERR(skb)); 2273 return; 2274 } 2275 2276 if (skb->len != 13) { 2277 BT_ERR("%s: Exception info size mismatch", hdev->name); 2278 kfree_skb(skb); 2279 return; 2280 } 2281 2282 if (skb->data[0] != 0x00) { 2283 BT_ERR("%s: Exception info command failure (%02x)", 2284 hdev->name, skb->data[0]); 2285 kfree_skb(skb); 2286 return; 2287 } 2288 2289 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1)); 2290 2291 kfree_skb(skb); 2292 } 2293 2294 static int btusb_shutdown_intel(struct hci_dev *hdev) 2295 { 2296 struct sk_buff *skb; 2297 long ret; 2298 2299 /* Some platforms have an issue with BT LED when the interface is 2300 * down or BT radio is turned off, which takes 5 seconds to BT LED 2301 * goes off. This command turns off the BT LED immediately. 2302 */ 2303 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2304 if (IS_ERR(skb)) { 2305 ret = PTR_ERR(skb); 2306 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2307 hdev->name, ret); 2308 return ret; 2309 } 2310 kfree_skb(skb); 2311 2312 return 0; 2313 } 2314 2315 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2316 const bdaddr_t *bdaddr) 2317 { 2318 struct sk_buff *skb; 2319 u8 buf[8]; 2320 long ret; 2321 2322 buf[0] = 0xfe; 2323 buf[1] = sizeof(bdaddr_t); 2324 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2325 2326 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2327 if (IS_ERR(skb)) { 2328 ret = PTR_ERR(skb); 2329 BT_ERR("%s: changing Marvell device address failed (%ld)", 2330 hdev->name, ret); 2331 return ret; 2332 } 2333 kfree_skb(skb); 2334 2335 return 0; 2336 } 2337 2338 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2339 const bdaddr_t *bdaddr) 2340 { 2341 struct sk_buff *skb; 2342 u8 buf[10]; 2343 long ret; 2344 2345 buf[0] = 0x01; 2346 buf[1] = 0x01; 2347 buf[2] = 0x00; 2348 buf[3] = sizeof(bdaddr_t); 2349 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2350 2351 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2352 if (IS_ERR(skb)) { 2353 ret = PTR_ERR(skb); 2354 BT_ERR("%s: Change address command failed (%ld)", 2355 hdev->name, ret); 2356 return ret; 2357 } 2358 kfree_skb(skb); 2359 2360 return 0; 2361 } 2362 2363 #define QCA_DFU_PACKET_LEN 4096 2364 2365 #define QCA_GET_TARGET_VERSION 0x09 2366 #define QCA_CHECK_STATUS 0x05 2367 #define QCA_DFU_DOWNLOAD 0x01 2368 2369 #define QCA_SYSCFG_UPDATED 0x40 2370 #define QCA_PATCH_UPDATED 0x80 2371 #define QCA_DFU_TIMEOUT 3000 2372 2373 struct qca_version { 2374 __le32 rom_version; 2375 __le32 patch_version; 2376 __le32 ram_version; 2377 __le32 ref_clock; 2378 __u8 reserved[4]; 2379 } __packed; 2380 2381 struct qca_rampatch_version { 2382 __le16 rom_version; 2383 __le16 patch_version; 2384 } __packed; 2385 2386 struct qca_device_info { 2387 u32 rom_version; 2388 u8 rampatch_hdr; /* length of header in rampatch */ 2389 u8 nvm_hdr; /* length of header in NVM */ 2390 u8 ver_offset; /* offset of version structure in rampatch */ 2391 }; 2392 2393 static const struct qca_device_info qca_devices_table[] = { 2394 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2395 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2396 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2397 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2398 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2399 }; 2400 2401 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2402 void *data, u16 size) 2403 { 2404 struct btusb_data *btdata = hci_get_drvdata(hdev); 2405 struct usb_device *udev = btdata->udev; 2406 int pipe, err; 2407 u8 *buf; 2408 2409 buf = kmalloc(size, GFP_KERNEL); 2410 if (!buf) 2411 return -ENOMEM; 2412 2413 /* Found some of USB hosts have IOT issues with ours so that we should 2414 * not wait until HCI layer is ready. 2415 */ 2416 pipe = usb_rcvctrlpipe(udev, 0); 2417 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2418 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2419 if (err < 0) { 2420 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err); 2421 goto done; 2422 } 2423 2424 memcpy(data, buf, size); 2425 2426 done: 2427 kfree(buf); 2428 2429 return err; 2430 } 2431 2432 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2433 const struct firmware *firmware, 2434 size_t hdr_size) 2435 { 2436 struct btusb_data *btdata = hci_get_drvdata(hdev); 2437 struct usb_device *udev = btdata->udev; 2438 size_t count, size, sent = 0; 2439 int pipe, len, err; 2440 u8 *buf; 2441 2442 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2443 if (!buf) 2444 return -ENOMEM; 2445 2446 count = firmware->size; 2447 2448 size = min_t(size_t, count, hdr_size); 2449 memcpy(buf, firmware->data, size); 2450 2451 /* USB patches should go down to controller through USB path 2452 * because binary format fits to go down through USB channel. 2453 * USB control path is for patching headers and USB bulk is for 2454 * patch body. 2455 */ 2456 pipe = usb_sndctrlpipe(udev, 0); 2457 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2458 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2459 if (err < 0) { 2460 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err); 2461 goto done; 2462 } 2463 2464 sent += size; 2465 count -= size; 2466 2467 while (count) { 2468 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2469 2470 memcpy(buf, firmware->data + sent, size); 2471 2472 pipe = usb_sndbulkpipe(udev, 0x02); 2473 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2474 QCA_DFU_TIMEOUT); 2475 if (err < 0) { 2476 BT_ERR("%s: Failed to send body at %zd of %zd (%d)", 2477 hdev->name, sent, firmware->size, err); 2478 break; 2479 } 2480 2481 if (size != len) { 2482 BT_ERR("%s: Failed to get bulk buffer", hdev->name); 2483 err = -EILSEQ; 2484 break; 2485 } 2486 2487 sent += size; 2488 count -= size; 2489 } 2490 2491 done: 2492 kfree(buf); 2493 return err; 2494 } 2495 2496 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2497 struct qca_version *ver, 2498 const struct qca_device_info *info) 2499 { 2500 struct qca_rampatch_version *rver; 2501 const struct firmware *fw; 2502 u32 ver_rom, ver_patch; 2503 u16 rver_rom, rver_patch; 2504 char fwname[64]; 2505 int err; 2506 2507 ver_rom = le32_to_cpu(ver->rom_version); 2508 ver_patch = le32_to_cpu(ver->patch_version); 2509 2510 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2511 2512 err = request_firmware(&fw, fwname, &hdev->dev); 2513 if (err) { 2514 BT_ERR("%s: failed to request rampatch file: %s (%d)", 2515 hdev->name, fwname, err); 2516 return err; 2517 } 2518 2519 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname); 2520 2521 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2522 rver_rom = le16_to_cpu(rver->rom_version); 2523 rver_patch = le16_to_cpu(rver->patch_version); 2524 2525 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x " 2526 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom, 2527 ver_patch); 2528 2529 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2530 BT_ERR("%s: rampatch file version did not match with firmware", 2531 hdev->name); 2532 err = -EINVAL; 2533 goto done; 2534 } 2535 2536 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2537 2538 done: 2539 release_firmware(fw); 2540 2541 return err; 2542 } 2543 2544 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2545 struct qca_version *ver, 2546 const struct qca_device_info *info) 2547 { 2548 const struct firmware *fw; 2549 char fwname[64]; 2550 int err; 2551 2552 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2553 le32_to_cpu(ver->rom_version)); 2554 2555 err = request_firmware(&fw, fwname, &hdev->dev); 2556 if (err) { 2557 BT_ERR("%s: failed to request NVM file: %s (%d)", 2558 hdev->name, fwname, err); 2559 return err; 2560 } 2561 2562 BT_INFO("%s: using NVM file: %s", hdev->name, fwname); 2563 2564 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2565 2566 release_firmware(fw); 2567 2568 return err; 2569 } 2570 2571 static int btusb_setup_qca(struct hci_dev *hdev) 2572 { 2573 const struct qca_device_info *info = NULL; 2574 struct qca_version ver; 2575 u32 ver_rom; 2576 u8 status; 2577 int i, err; 2578 2579 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2580 sizeof(ver)); 2581 if (err < 0) 2582 return err; 2583 2584 ver_rom = le32_to_cpu(ver.rom_version); 2585 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2586 if (ver_rom == qca_devices_table[i].rom_version) 2587 info = &qca_devices_table[i]; 2588 } 2589 if (!info) { 2590 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name, 2591 ver_rom); 2592 return -ENODEV; 2593 } 2594 2595 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2596 sizeof(status)); 2597 if (err < 0) 2598 return err; 2599 2600 if (!(status & QCA_PATCH_UPDATED)) { 2601 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2602 if (err < 0) 2603 return err; 2604 } 2605 2606 if (!(status & QCA_SYSCFG_UPDATED)) { 2607 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2608 if (err < 0) 2609 return err; 2610 } 2611 2612 return 0; 2613 } 2614 2615 static int btusb_probe(struct usb_interface *intf, 2616 const struct usb_device_id *id) 2617 { 2618 struct usb_endpoint_descriptor *ep_desc; 2619 struct btusb_data *data; 2620 struct hci_dev *hdev; 2621 int i, err; 2622 2623 BT_DBG("intf %p id %p", intf, id); 2624 2625 /* interface numbers are hardcoded in the spec */ 2626 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) 2627 return -ENODEV; 2628 2629 if (!id->driver_info) { 2630 const struct usb_device_id *match; 2631 2632 match = usb_match_id(intf, blacklist_table); 2633 if (match) 2634 id = match; 2635 } 2636 2637 if (id->driver_info == BTUSB_IGNORE) 2638 return -ENODEV; 2639 2640 if (id->driver_info & BTUSB_ATH3012) { 2641 struct usb_device *udev = interface_to_usbdev(intf); 2642 2643 /* Old firmware would otherwise let ath3k driver load 2644 * patch and sysconfig files */ 2645 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2646 return -ENODEV; 2647 } 2648 2649 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2650 if (!data) 2651 return -ENOMEM; 2652 2653 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2654 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2655 2656 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2657 data->intr_ep = ep_desc; 2658 continue; 2659 } 2660 2661 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2662 data->bulk_tx_ep = ep_desc; 2663 continue; 2664 } 2665 2666 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2667 data->bulk_rx_ep = ep_desc; 2668 continue; 2669 } 2670 } 2671 2672 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2673 return -ENODEV; 2674 2675 if (id->driver_info & BTUSB_AMP) { 2676 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2677 data->cmdreq = 0x2b; 2678 } else { 2679 data->cmdreq_type = USB_TYPE_CLASS; 2680 data->cmdreq = 0x00; 2681 } 2682 2683 data->udev = interface_to_usbdev(intf); 2684 data->intf = intf; 2685 2686 INIT_WORK(&data->work, btusb_work); 2687 INIT_WORK(&data->waker, btusb_waker); 2688 init_usb_anchor(&data->deferred); 2689 init_usb_anchor(&data->tx_anchor); 2690 spin_lock_init(&data->txlock); 2691 2692 init_usb_anchor(&data->intr_anchor); 2693 init_usb_anchor(&data->bulk_anchor); 2694 init_usb_anchor(&data->isoc_anchor); 2695 spin_lock_init(&data->rxlock); 2696 2697 if (id->driver_info & BTUSB_INTEL_NEW) { 2698 data->recv_event = btusb_recv_event_intel; 2699 data->recv_bulk = btusb_recv_bulk_intel; 2700 set_bit(BTUSB_BOOTLOADER, &data->flags); 2701 } else { 2702 data->recv_event = hci_recv_frame; 2703 data->recv_bulk = btusb_recv_bulk; 2704 } 2705 2706 hdev = hci_alloc_dev(); 2707 if (!hdev) 2708 return -ENOMEM; 2709 2710 hdev->bus = HCI_USB; 2711 hci_set_drvdata(hdev, data); 2712 2713 if (id->driver_info & BTUSB_AMP) 2714 hdev->dev_type = HCI_AMP; 2715 else 2716 hdev->dev_type = HCI_BREDR; 2717 2718 data->hdev = hdev; 2719 2720 SET_HCIDEV_DEV(hdev, &intf->dev); 2721 2722 hdev->open = btusb_open; 2723 hdev->close = btusb_close; 2724 hdev->flush = btusb_flush; 2725 hdev->send = btusb_send_frame; 2726 hdev->notify = btusb_notify; 2727 2728 if (id->driver_info & BTUSB_BCM92035) 2729 hdev->setup = btusb_setup_bcm92035; 2730 2731 #ifdef CONFIG_BT_HCIBTUSB_BCM 2732 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 2733 hdev->setup = btbcm_setup_patchram; 2734 hdev->set_bdaddr = btbcm_set_bdaddr; 2735 } 2736 2737 if (id->driver_info & BTUSB_BCM_APPLE) 2738 hdev->setup = btbcm_setup_apple; 2739 #endif 2740 2741 if (id->driver_info & BTUSB_INTEL) { 2742 hdev->setup = btusb_setup_intel; 2743 hdev->shutdown = btusb_shutdown_intel; 2744 hdev->set_bdaddr = btintel_set_bdaddr; 2745 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 2746 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2747 } 2748 2749 if (id->driver_info & BTUSB_INTEL_NEW) { 2750 hdev->send = btusb_send_frame_intel; 2751 hdev->setup = btusb_setup_intel_new; 2752 hdev->hw_error = btusb_hw_error_intel; 2753 hdev->set_bdaddr = btintel_set_bdaddr; 2754 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 2755 } 2756 2757 if (id->driver_info & BTUSB_MARVELL) 2758 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 2759 2760 if (id->driver_info & BTUSB_SWAVE) { 2761 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 2762 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 2763 } 2764 2765 if (id->driver_info & BTUSB_INTEL_BOOT) 2766 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 2767 2768 if (id->driver_info & BTUSB_ATH3012) { 2769 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 2770 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2771 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 2772 } 2773 2774 if (id->driver_info & BTUSB_QCA_ROME) { 2775 data->setup_on_usb = btusb_setup_qca; 2776 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 2777 } 2778 2779 if (id->driver_info & BTUSB_AMP) { 2780 /* AMP controllers do not support SCO packets */ 2781 data->isoc = NULL; 2782 } else { 2783 /* Interface numbers are hardcoded in the specification */ 2784 data->isoc = usb_ifnum_to_if(data->udev, 1); 2785 } 2786 2787 if (!reset) 2788 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2789 2790 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 2791 if (!disable_scofix) 2792 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 2793 } 2794 2795 if (id->driver_info & BTUSB_BROKEN_ISOC) 2796 data->isoc = NULL; 2797 2798 if (id->driver_info & BTUSB_DIGIANSWER) { 2799 data->cmdreq_type = USB_TYPE_VENDOR; 2800 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2801 } 2802 2803 if (id->driver_info & BTUSB_CSR) { 2804 struct usb_device *udev = data->udev; 2805 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 2806 2807 /* Old firmware would otherwise execute USB reset */ 2808 if (bcdDevice < 0x117) 2809 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 2810 2811 /* Fake CSR devices with broken commands */ 2812 if (bcdDevice <= 0x100) 2813 hdev->setup = btusb_setup_csr; 2814 2815 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 2816 } 2817 2818 if (id->driver_info & BTUSB_SNIFFER) { 2819 struct usb_device *udev = data->udev; 2820 2821 /* New sniffer firmware has crippled HCI interface */ 2822 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 2823 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 2824 } 2825 2826 if (id->driver_info & BTUSB_INTEL_BOOT) { 2827 /* A bug in the bootloader causes that interrupt interface is 2828 * only enabled after receiving SetInterface(0, AltSetting=0). 2829 */ 2830 err = usb_set_interface(data->udev, 0, 0); 2831 if (err < 0) { 2832 BT_ERR("failed to set interface 0, alt 0 %d", err); 2833 hci_free_dev(hdev); 2834 return err; 2835 } 2836 } 2837 2838 if (data->isoc) { 2839 err = usb_driver_claim_interface(&btusb_driver, 2840 data->isoc, data); 2841 if (err < 0) { 2842 hci_free_dev(hdev); 2843 return err; 2844 } 2845 } 2846 2847 err = hci_register_dev(hdev); 2848 if (err < 0) { 2849 hci_free_dev(hdev); 2850 return err; 2851 } 2852 2853 usb_set_intfdata(intf, data); 2854 2855 return 0; 2856 } 2857 2858 static void btusb_disconnect(struct usb_interface *intf) 2859 { 2860 struct btusb_data *data = usb_get_intfdata(intf); 2861 struct hci_dev *hdev; 2862 2863 BT_DBG("intf %p", intf); 2864 2865 if (!data) 2866 return; 2867 2868 hdev = data->hdev; 2869 usb_set_intfdata(data->intf, NULL); 2870 2871 if (data->isoc) 2872 usb_set_intfdata(data->isoc, NULL); 2873 2874 hci_unregister_dev(hdev); 2875 2876 if (intf == data->isoc) 2877 usb_driver_release_interface(&btusb_driver, data->intf); 2878 else if (data->isoc) 2879 usb_driver_release_interface(&btusb_driver, data->isoc); 2880 2881 hci_free_dev(hdev); 2882 } 2883 2884 #ifdef CONFIG_PM 2885 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 2886 { 2887 struct btusb_data *data = usb_get_intfdata(intf); 2888 2889 BT_DBG("intf %p", intf); 2890 2891 if (data->suspend_count++) 2892 return 0; 2893 2894 spin_lock_irq(&data->txlock); 2895 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 2896 set_bit(BTUSB_SUSPENDING, &data->flags); 2897 spin_unlock_irq(&data->txlock); 2898 } else { 2899 spin_unlock_irq(&data->txlock); 2900 data->suspend_count--; 2901 return -EBUSY; 2902 } 2903 2904 cancel_work_sync(&data->work); 2905 2906 btusb_stop_traffic(data); 2907 usb_kill_anchored_urbs(&data->tx_anchor); 2908 2909 return 0; 2910 } 2911 2912 static void play_deferred(struct btusb_data *data) 2913 { 2914 struct urb *urb; 2915 int err; 2916 2917 while ((urb = usb_get_from_anchor(&data->deferred))) { 2918 err = usb_submit_urb(urb, GFP_ATOMIC); 2919 if (err < 0) 2920 break; 2921 2922 data->tx_in_flight++; 2923 } 2924 usb_scuttle_anchored_urbs(&data->deferred); 2925 } 2926 2927 static int btusb_resume(struct usb_interface *intf) 2928 { 2929 struct btusb_data *data = usb_get_intfdata(intf); 2930 struct hci_dev *hdev = data->hdev; 2931 int err = 0; 2932 2933 BT_DBG("intf %p", intf); 2934 2935 if (--data->suspend_count) 2936 return 0; 2937 2938 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2939 goto done; 2940 2941 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 2942 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 2943 if (err < 0) { 2944 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 2945 goto failed; 2946 } 2947 } 2948 2949 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 2950 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 2951 if (err < 0) { 2952 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 2953 goto failed; 2954 } 2955 2956 btusb_submit_bulk_urb(hdev, GFP_NOIO); 2957 } 2958 2959 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 2960 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 2961 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 2962 else 2963 btusb_submit_isoc_urb(hdev, GFP_NOIO); 2964 } 2965 2966 spin_lock_irq(&data->txlock); 2967 play_deferred(data); 2968 clear_bit(BTUSB_SUSPENDING, &data->flags); 2969 spin_unlock_irq(&data->txlock); 2970 schedule_work(&data->work); 2971 2972 return 0; 2973 2974 failed: 2975 usb_scuttle_anchored_urbs(&data->deferred); 2976 done: 2977 spin_lock_irq(&data->txlock); 2978 clear_bit(BTUSB_SUSPENDING, &data->flags); 2979 spin_unlock_irq(&data->txlock); 2980 2981 return err; 2982 } 2983 #endif 2984 2985 static struct usb_driver btusb_driver = { 2986 .name = "btusb", 2987 .probe = btusb_probe, 2988 .disconnect = btusb_disconnect, 2989 #ifdef CONFIG_PM 2990 .suspend = btusb_suspend, 2991 .resume = btusb_resume, 2992 #endif 2993 .id_table = btusb_table, 2994 .supports_autosuspend = 1, 2995 .disable_hub_initiated_lpm = 1, 2996 }; 2997 2998 module_usb_driver(btusb_driver); 2999 3000 module_param(disable_scofix, bool, 0644); 3001 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3002 3003 module_param(force_scofix, bool, 0644); 3004 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3005 3006 module_param(reset, bool, 0644); 3007 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3008 3009 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3010 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3011 MODULE_VERSION(VERSION); 3012 MODULE_LICENSE("GPL"); 3013